Human World

Jochen Weiss on fortifying foods with nano-capsules

Jochen Weiss, professor of food science at the University of Hohenheim in Germany, is using nanotechnology to fortify foods with nutrients.

Jochen Weiss: A lot of the systems that we’re interested in are where you try to put in omega-3 fatty acids – they have a lot of beneficial functions in terms of health. It’s very difficult to include them in a food system and make sure that they’re still active and that the food still tastes good.

Weiss’s lab has developed a way to encase the omega-3 fatty acids in capsules that are about 2,000 times smaller than the width of a human hair.

Jochen Weiss: If you think about these systems as pills, it would be a very wrong scale of things. We’re trying to put these compounds into very, very tiny systems. They’re so tiny that actually once they’re encapsulated, you wouldn’t even be able to see it.

The nano-sized capsules are tasteless and preserve the active ingredients in the omega-3 fatty acids.

Jochen Weiss: You could put them in a wide variety of foods. You could put them into beverages. The purpose of the encapsulation is to actually make them compatible with a very wide range of food products.

Thanks today to the USDA Cooperative State Research, Education and Extension Service National Research Initiative Program and Cornell University.

Our thanks to:
Jochen Weiss
University of Hohenheim

May 18, 2008
Human World

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